Hair waving or curling device



I 1 I g 927 L H. G. VAN DIJK HAIR WAVING 0R CURLING DEVICE Filed May 5. 1926 v FIGS.

Ira enter. Louis Henri Guillaume Van Patented Aug. 16, 1927.

UNITED STATES P TENTMQFFICE.

LOUIS HENRI GUILLAUME VAN 'DIJ' K, '01 THE HAGUE, NETHERLANDS.

HAIR WAVING OR CURLING DEVICE.

Application filed May 5, 1926, Serial No. 106,851, and in the Netherlands August 25, 1925.

My present invention relates to means for waving or curling human hair. Known means of this character comprise a curler in the form of a rod having a circular cross section throughout and an electrically heat-, ed sleeve fitting with a certain amount of clearance around the same. hair has been coiled or wound on the curler, a moist piece of cloth or a moist pad, saturated with suitable chemicals, is wrapped around the tress, whereupon the heating sleeve is passed thereover. By the combined actions of the heat and of the chemicals the hair is more or less permanently waved.

The use of curlers-of circular'cross section, however, has the inconvenience that the hair must be moistened after it has been subjected to the heat treatment, as otherwise it is impossible to obtain the desired waving therein. Moreover, the waving thus produced is not very durable.

It has now been found that a more natural and a more permanent waving of the hair in the coifiure is obtained if the curler has not a circular, but a lenticular cross section of uniform size throughout its effective length. In connection with this novelcurler, I preferably employ a heating sleeve having an oval cross section so that when the sleeve is passed over the curler its inner wall has a uniform distance from the curler throughout the effective length thereof.

I am aware that it has already been proposed to use curlers having a lens-shaped cross section, but these known curlers are tapered so that the size of their cross section gradually decreases from one end to the other. With curlers of this type, the developed lengths of the windings are unequal, so that in the hairdress the natural Marcel undula tion or thelike cannot be obtained.

The annexed drawing illustrates, by way of example only, a waving device in accordance with my invention.

Fig. 1 is a perspective view'of the curler,

Fig. 2 is a perspective view of a centering ring,

Fig. 3 is across sectional view along the line IIIIII in Fig. 4,

Fig. 4 is a longitudinal sectional view of the whole device, along the line IVIV in Fig. 3, a tress of hair being coiled upon the curler,

After a tress of.

Fig. 5 is an elevation-of a heat insulating disc.

The tubular curler 6 has a lenticula-r or lensshaped cross section of uniform size. At its lower end said curler is provided with an oval flange 7 of uniform width. A recess 8 in said flange allows the tress of hair to pass, a finger 9 pivoted to the flange serving to lock the tress in said recess. The upper end portion of the curler 6 is slightly tapered so that a loose, oval flange or centering ring 10 can firmly be pressed thereupon.

The heating sleeve consists of a metallic inner wall 11, a metallic outer wall 12, an electric heating coil 13 arranged in the intel-space, contact pins 14, insulating sleeves 15 and an insulating cover 16.

The head of the user is indicated by 17 the tress of hair to be waved by 18. As shown, the hairs in the tress are bound together, near the head, by a string'19, although in many cases said string may altogether be dispensed with. 20 is a heat insulating disc provided with a central hole 21 and a radial incision 22, whereby it can easily be passed over the tress. The tress of hair is. passed through the recess 8 and coiled upon the curler 6, a piece of cloth 23 saturated with suitable chemicals being wrapped around the tress as shown.

The heating sleeve is passed over the flanges 7 and 10 until its front edge engages the heat insulating disc 20. The width of said flanges should be suflicient to prevent with the inner wall of the heating sleeve. Owing to the uniform distance of the said inner wall from the curler 6, the heating of the tress takes place very uniformly, wherebyscorching or smgemg of the hair 1s positely-disposed longitudinally extending the wrapper 23 from coming into contact corners throughout the effective length of the curler, and a heating sleeve, having an oval internal cross section, adapted to fit over the curler and spaced uniformly therefrom.

2. Means for waving or curling hair comprising a curler having a lenticu'lar crosssection of uniform size throu bout the effective length of the curler, a i ange on each end of the curler of relatively great diameter and a heating sleeve, having an oval internal cross-section, adapted to seat on the flanges and be spaced uniformly from the curler throughout the effective length thereof.

In testimony whereof I affix my signature.

LOUIS HENRI GUILLAUME VAN DEJK. 

